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Haystack

Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and

AgentPick Score 88/100#9 in Agent building★ 27k GitHub starsApache-2.0Updated 14 Oct 2026Python

Ranked by AgentPick Score, our data score from public GitHub activity. Description is the project's own.

Topics: agent-framework, agentic-ai, agentic-rag, agents, ai, ai-agents, context-engineering, framework, genai, generative-ai, information-retrieval, large-language-models

Starter prompt

Try Haystack on one small, low-risk task: [task]. Tell me what worked, what didn't, and how long it took.
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